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A balloon containing 2.0 m^3 of hydrogen gas rises from a location at which the temperature is 22 degrees Celsius and the pressure is 101 kPa to a location where the temperature is -39 degrees Celsius and the pressure is 20 kPa. If the balloon is free to expand so that the pressure of the gas inside is equal to the ambient pressure, what is the new volume of the balloon?
A vertical straight wire carrying an upward 11 A current exerts an attractive force per unit length of 8.8 multiplied by 10-4 N/m on a second parallel wire 8.0 cm away
Consider an ideal gas at 27 degree C and 1 atm. To get some idea how close these molecules are to each other, What is the length of an edge of each cube if adgacent cubes touch but not overlap
The company's basis in the inventory is $5,000. Explain how large a deduction is it allowed for this charitable contribution?
To determine the specific heat of an object, a student heats it to 100 in boiling water. She then places the 68.5 object in a 196 aluminum calorimeter containing 135 of water. what is the specific heat of the object
A bike wheel (I=m*(r^2)) is spinning at 20 rad/s, at which point a 100 g rat jumps onto the wheel, what is the mass of the bike wheel
A horizontal force of magnitude 100 N begins to pull directly on block. In unit-vector notation, what are the resulting accelerations of (a) block and (b) slab.
A thick copper wire of length 10 m is observed to stretch 0.10 cm. What is the strain? If the applied force is 50,000 N, what is the diameter of the wire
The concrete wall of a building is 0.136 m thick. The temperature inside the building is 22.3 °C, while the temperature outside is 0.0 °C. What is the emissivity of the wall
At an altitude of 260 m above the Earth's surface, the field is only 105 N/C. Calculate the charge density of the air (assumed constant).
A 15 V constant voltage battery is connected to 120 kΩ resistora. How many electrons pass through the resistor each second
Two people, one twice as massive as the other, try to play tug of war on a nearly frictionless, level, icy surface. How far does the heavier person slide
Two forces on the object are = 4.3 at 80 below the +x-axis and = 4.3 at 34 above the -x-axis. Is there a third force on the object? Find the direction of the force
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